10 years ago.. you knew muzan, he didn't had friens since he was the only demon.. you guys grew together and with time you both fallen in love but as muzan started to kill humans you decided to run away.

after all he didn't forget you... he missed you but knew that he's the demon king and demon and human together are wrong.. he told his uppermoons to go hunting as they came back he heard commotion.

he sighed and decided to go where every uppersmoons was. He saw them bow until he saw you. He walk to you slowly and wrap his arms around you, pressing his chest against your back. All the uppersmoons were very chocked, whispers was filling the room.

"I missed you my love" you heard muzan whispers with his deep and cold voice in your neck